Research On Seismic Behavior Of Timber Frame Raw-soil Of Geogrid Reinforced

At present,there are a large number of native building houses in China,especially in remote areas and impoverished mountainous areas.Due to the special geographical environment or inconvenient transportation,the local economy is seriously lagging behind.New materials outside are hard to enter and can only be sourced locally.Most of the native-built houses were built on the basis of the workers' experience.They did not conduct in-depth and detailed studies,and their technology was backward,with uneven quality and seriously endangering people's personal safety.Under the support of the National Twelfth Five-Year Plan for Science and Technology Support Project,“Rehabilitation and Application of Traditional Rural House Construction Technologies(2015BAL03B03)”,the study will improve the seismic performance of rural housing.This article starts with field research,earthquake-resistance test and numerical simulation of earth walls,and draws some conclusions.The content is briefly as follows:(1)Through the analysis and analysis of survey data,the existing problems are summarized,and it is found that the raw soil structure is widely used in residential areas.However,the impact of the earthquake is not taken into account in the construction,and the integrity of the load-bearing walls is poor,which is an important factor in the collapse of houses during an earthquake.factor.(2)Through the low-cycle reciprocating load test of the scale model of six raw soil walls,studied seismic performance of the a font of prime soil wall,the wooden beam column pull raw soil wall,the geogrid-pulled wooden pillar beam-the raw soil wall Horizontal grid pull raw wall and vertical grid pull raw wall were.Laisheng raw soil wall and vertical grid pulls the seismic performance of the raw soil wall,and analyzes the wall failure mechanism,hysteretic curve and stiffness degradation curve.The test results show that the arrangement of geogrid in the raw soil wall and the combination of wooden structural columns and wooden ring beams on the wall can effectively pull the soil,improve the integrity of the soil;restrain the deformation of the wall anddelay the development of cracks,reduce the concentration of cracks that will lead to serious damage,the new measures can improve the seismic performance of the wall.(3)The ANSYS finite element analysis software was used to simulate the seismic performance of differently constructed earth wall systems under low-cycle reciprocating action,and the model results were analyzed.The results show that the combination of geogrid and wooden frame system can significantly improve the stress distribution of the wall,constrain the deformation of the wall and increase the bearing capacity.Compared with the test results,verify the correctness of the model.Based on the experimental research results,this paper presents the practical technical measures for the seismic structure of the residential building wall in rural areas,and provides basic research data for the construction of rural areas.